Adjustable tool-holder for planers, &amp;c.



PATENTED FEB. 24, 1903. G. H. KLEINERT.

ADJUSTABLE TOOL HOLDER FOR PLNERS, Gro.

APPLICATIONV FILED DEU. 2, 1901.-

I0 IODEL.

WITNESSES 'L lNvENroR M Peasrel. 0 s

UNITED STATES- PATENT OFFICE.

GEORGE H. KLEINERT, OF CLEVELAND, OHIO.

ADJUSTABLE TOOL-HOLDER FOR LANERS, 80G.

SPECEFICATION forming part of Letters Patent N o. 721,201, datedFebruary 24, 1903.

, Application filed Decemberv, 1901. Serial No. 84,321. (No model.)

To a/ZZ whom it may concern:

Be it known that I, GEORGE H. KLEINERT, a citizen of the United Statesof America, and a resident of Cleveland, in the county of Cuyahoga andState of Ohio, have, invented certain new and useful Improvements inAdjustl able Tool-Holders for Planers, duc., of whichY the following isa specification.

My invention consists in a holder and manipulator for tools used inconnection with planers, shapers, lathes, (itc. The object of myinvention is to provide a device or contrivance which not only increasesthe capacity of such machines, but which also facilitates the work ofthe operator and assures greater accuracy in the finished machinedarticles. I attain this object by the construction of a devicesubstantially as shown in the accompanying drawings, in which- Figure 1represents a plan view of said deT vice. Fig. 2 is a part-sectional andpart-elevational view of the same. Fig. 3 is an under side view of same.Figs. 4 and 5 are side views of the under and upper portions of saidtool holder land manipulator. Fig. 6 illustrates a sectional view of aT-slot and the position of tools for cutting said T-slot. v

Like letters of reference denote like parts in the drawings andspecification.

Substantially this .device consists of the hub or block A, thetool-holder B, the slide O, screw-threaded spindle D, lever E, anddiverse minor parts vhereinafter mentioned.

The exterior of the hub is substantially of a form to enable convenientand secure connection thereof with the tool-carrying part of lathes,planer's, dsc., the latter being of a form to securely grip the hub.Such connec-` tion is established with the portion a. thereofintermediate lthe tool-holder and the slide, the length of said hub orblock being varied to suit conditions and location. Arranged in pivotedconnection with said hub is the tool-holder B, which comprises the headb and spindle c. (See Figs. 2 and 3.) l The head l) of saidholderisperforated, as at d d d d', for reception of the cutters e e.Said cutters may be positioned either vertically or horizontally, asconditions may require. (See Figs. 2 and 4..) Preferably set-screws f fare employed for securing said cutters in place;

The spindle or shank part c of said tool-holder is retained to said hubor block by means of the nutg, shown on top of lever E. (See Fig. 2.)

Approximately near the top and front side of the hub A is placed theslide A(3having a dove'tailed connection with said hub or block, whilethe screw-threaded spindle D serves as a means of adjustment forsaidslide, which in-turn effects the position of the tool-holder head by theintervention of the lever E and other parts-namely, the pin h' and thelugs ij-as presently described. The pinhv is inserted within the frontpart of the slide O, extending vertically therein, and is supported bythe spring K, as shown in Figs. 2 and 5,

said spring normally holding the pin h in engagement with the lever Ebetween the lugs t'j. A side arm Z, secured to said pin, projectslaterally in the path of movement of a `trigger L, the movement of whichcauses the the pin between said lugs without requiring manual depressionof the arm Z. Furthermore, there is placed a spring m within the cavityfn of hub A, and the terminals of said spring extend up and downwardlyfor engagement of said hub and lever, as seen in Fig. 2, to provide aspring tension, which tends to move the lever out of its normal orlocked position. The eye o of the lever being secured to the spindle cbyn means of the feather q enables a turning of said spindle by means ofsaid lever. The spring fm is intended to effect automatically a swingingof the lever in the direction of the arrow as soon as the lever becomesreleased.

A short arm p projects from the rear of the lever E, and an adjustablestop r is attached to the rear of the hub A within reach of said arm.With such or similar provision the turning of the lever is confinedWithin certain limits, suchv as are amply sufficient to re- IOO it willbe readily understood that any movement of the screw-threaded spindle Dtending to adjust the position of the slide in the hub or block willcause a corresponding movement of the pin h, carrying with it in suchmovement the lever E. As, however, the lever E is connected to thetool-holder, the movement of the slide will impart a pivotal movementwithin the limits which the slide has been moved to the tool-holder, andas these parts are all operatively connected with said hub or block itwill be seen that the tool-holder has an adjustable pivotal connectionwith the hub or block, due primarily to the movement of the spindle D.

The lever E is intended to be swung in one direction only-namely, indirection of the arrow. Therefore only one of the lugs need be taperedor beveled, and only on one side is a stop required for the arm p toprevent undue movement of the lever E.

One of the important features of my invention is the fact that thetool-holder is both pivotal and carries two or more cutters arranged tooperate simultaneously. This is especially useful in undercutting orT-slotting, in which the two cutters can operate on opposite sides ofthe entrance-slot, and by having the holder pivotally mounted it can bereadily moved so as to permit either the Withdrawal of the tools in thereturn movement or a cutting of a deeper undercut at the forwardmovement.

The location of the perforations d d within the head b is such as toarrange the cutting edges of the tools equidistant from the axis of thetool-holder. Under such conditions a turning of the tool-head willeffect an equal advance and retreat of the cutting edges of the tools inlateral direction.

The spindle D enables the operator to feed the cutters in lateraldirection, as in undercutting for the formation of a T-slot, and beforeeach return stroke of the cutters a quick release can be effected forsaid cutters simply by depressing the arm Z, which is automatically doneby the trigger L having its short member t in operative contact withsaid arm Z, while the long arm z5' is tipped rear- Wardly by somestationary obstruction. When the return stroke has been completed, thelever is forced manually to its locked condition, and the beveled faceof the lug t depresses the pin hin order to accommodate the entering ofsaid pin between the lugs tj. Furthermore, upon turning of the spindle Dto the right a spreading of the cutters can be caused until they travelfar enough apart to cut a T-slot of the required width. This is due tothe fact that the movement of the screw-threaded spindle D moves saidslide C relative to the hub, causing the spindle c to be moved pivotallyin such manner as to increase the degree or distance which said cuttersextend laterally on opposite sides of the center of the tool.

From the foregoing it can be readily understood that a duplextool-carrying device constructed substantially as above described canalso be used to advantage in ordinary planing, &c.

What I claim, and desire to secure by Letters Patent, is-

l. A tool equipment for planers, Shapers, lathes, &c., comprising arelatively stationary hub or block; a tool-holder pivotally mounted insaid block to have a movement in a horizontal plane, the verticalposition of the.

holder remaining unvaried; and an adjustableconnection between the blockand holder, whereby the movement of the tool-holder may be adjustablylimited.

2. A tool equipment for planers, Shapers, lathes, &c., comprising astationary hub or block, a duplex tool-hold er pivotally mounted thereinand having a spindle,.a lever secured to the spindle of said holder andan adjusting-slide for said lever carried by said block and operativelyconnected with said lever, all being equipped and arranged substantiallyin the manner as and for the purpose set forth.

3. A tool equipment for planers,shapers, lathes, duc., comprisiugarelatively stationary hub or block; a tool-hold er pivotally mounted insaid block to have a movement in a horizontal plane, the verticalposition of the holder remaining unvaried; and an adjustable connectionbetween the block and holder, whereby the movement of the tool-holdermay be adjustably limited, said holder being movable pivotallyindependent of the adjusting devices.

4. A tool equipment for planers, Shapers, die., comprising thecombination of a hub or tubular block, a duplex tool-holder having anaxial connection with said hub, said holder having a spindle, a leversecured to the spindle of said tool-holder, a slide arranged inconnection with said hub, a lpin engaging said lever to prevent lateralmovement thereof and means to withdraw said pin to release said leverall constructed and arranged substantially as and for the purpose setforth.

5. The combination with a duplex toolholder having pivotal movementrelative to a member adapted for fixed connection with planers, dce.;said member and an operatinglever for said holder; of an adjustingdevice carried by said member, and having engagement with said lever,for adjustably controlling the pivotal movement of said holder.

6. The combination with a duplex toolholder and its supporting member,of alever secured to the spindle of said tool-holder, mechanism forswinging said tool-holder and mechanism adapted to lock and release saidlever substantially in the manner as and for the purpose set forth.

7. In combination, a stationary hub or block; a tool-holder pivotallymounted therein within adjustable limits, means for normally holdingsaid holder locked in operative position; and means for automaticallymov- IIO block; a tool-holder pivotally mounted therein, means fornormally holding said holder locked in operative position; means forautomatically moving the holder to an inoperative position when thelocking mechanism is f released; and adjustable means'for limiting thelength of movement from an operative to an inoperative position.

l0. In combination, aV stationary hub or block; a tool-holderpivotallyfmounted therein, means for normally holding said holder lockedin operative position; means for automatically moving the holder to aninoperative position when the locking mechanism is released; and anadjustable stop carried by thehub or block for limiting the length ofmovement from 'an operative to an-inoperative position.

' l1.` In combination, a stationary hub or block; a tool-holderpivotally mounted therein Within adjustable limits; a lever for movingsaid holder pivotally, means fornormally holding said lever lockedvinoperative position, and meansfor automatically moving said lever to aninoperative position upon release of the locking mechanism. 4

12. In combination, a stationary hub or block; a tool-holder pivotallymountedtherein within adjustable limits; a lever for moving said holderpivotally; a locking device coperating with said lever to hold saidholder locked. in operative position, and a spring for automaticallymoving said lever to an inoperative position upon release of the lockingdevices.

13. In combination, a stationaryv hub or block ;y a tool-holderpivotally mounted therein; a lever for moving said holder pivotally,said lever having a recess; a spring-operated pin adapted to extend intosaid recessl to hold said lever locked in operative position, and aspring for automatically movingl said lever to an inoperative positionupon release of said pin from said recess.

14. In combination, a stationary hub or block; a tool-holder pivotallymounted therein;A a lever for moving said holder pivotally; and aslideadjustably connected to said block, said slidecarrying lockingdevices coperating with said lever forholding the lever locked, wherebya movementof the slide will impart a positive movement to the holderpivotally.

15. In combination, a stationary hub or block; atool-holder pivotallymountedtherein; a lever for moving said holder pivotally;

and a slide adj ustably connected to said block,

GEORGE H. KLEINERT.

Witnesses:

BERNE; F. EIBLER, NELLIE GAEVEY.

